000011730 001__ 11730
000011730 005__ 20141205155940.0
000011730 04107 $$aeng
000011730 046__ $$k2008-10-12
000011730 100__ $$aStirling, Mark W.
000011730 24500 $$aGroundwork for Using Precariously Balanced Rocks to Constrain Seismic Hazard Models in New Zealand

000011730 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011730 260__ $$b
000011730 506__ $$arestricted
000011730 520__ $$2eng$$aWe have undertaken a detailed cosmogenic dating study of precariously-balanced rocks (PBRs) in the central Otago province, New Zealand to understand the age and genesis of PBRs to an unprecedented level of detail within the temperate-humid New Zealand environment. Previous PBR studies have been restricted to desert environments. At face value our 10Be dates indicate that the numerous PBRs in the Clyde area of central Otago have been unstable for around 40ka, although previous central Otago-based studies raise the possibility that the ages are apparent and the PBRs are much younger (<10ka). Consideration of these age uncertainties raises the question as to whether the PBRs have experienced multiple large near-field earthquakes on the Dunstan Fault, or no such earthquakes, considering the long recurrence interval of the fault. Resolution of this issue might therefore have significant implications for near-fault motions for the Dunstan Fault. The dating of buried soils at the base of the PBR to resolve the issue is the goal of current efforts.

000011730 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011730 653__ $$aSeismic hazard, precarious rocks

000011730 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011730 720__ $$aStirling, Mark W.$$iZondervan, Albert$$iPurvance, Matthew D.$$iAnooshehpoor, Rasool$$iNorris, R.J.
000011730 8560_ $$ffischerc@itam.cas.cz
000011730 8564_ $$s805128$$uhttps://invenio.itam.cas.cz/record/11730/files/07-0152.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 07-0152.
000011730 962__ $$r9324
000011730 980__ $$aPAPER